REDWOOD-BROWN, A.; BUSSELL, C.; BHARAJ, H. S. The impact of different standards of opponents on observed player performance in the English Premier League. Journal of Human Sport and Exercise, [S. l.], v. 7, n. 2, p. 341–355, 2012. DOI: 10.4100/jhse.2012.72.01. Disponível em: https://www.jhse.ua.es/article/view/2012-v7-n2-proc-the-impact-of-different-standards-of-opponents-o. Acesso em: 9 may. 2024.